Republicans have secured their monopoly on power in Donald Trump’s new Washington, retaining their majority in the House of Representatives, CNN projected Wednesday, after picking up seats in California and Arizona and ushering in a dramatic new era of right-wing populist rule.

Data provider Decision Desk HQ projected on Monday that President-elect Donald Trump's Republican Party had won a majority in the U.S. House of Representatives, which would signal that Republicans would hold a majority in both chambers of Congress.